Northville
- County:
- Spink County
- County Seat:
- No
- Area (mi²):
- 0.376
- State:
- South Dakota
Northville is a town located in Spink County, South Dakota. Northville has a 2026 population of 134. Northville is currently declining at a rate of -1.47% annually and its population has decreased by -3.6% since the most recent census, which recorded a population of 139 in 2020.
The median household income in Northville is $105,000 with a poverty rate of 3.92%. The median age in Northville is 43.3 years: 46.2 years for males, and 37.5 years for females. For every 100 females there are 93.7 males.